Application of Catchment- and Local-Scale Variables for Aquatic Habitat Characterization and Assessment in the

作者： C. Ramos , Robson Tamar , Brazilian Semi-Arid Region , Marcio Joaquim da Silva

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摘要: The state of the physical habitat is influenced by factors operating at several spatial and temporal scales, such as geomorphology, climate, hydrology, land use water quality. This work measures diversity availability in natural artificial aquatic systems northeast Brazil. It aims to survey local- catchment-scale variables evaluate their importance a basic framework for characterization assessment habitats Brazilian semi-arid region. study was performed two areas (Serido/Borborema Buique/Vale do Ipojuca), classified being extreme biological identified priority biodiversity conservation Caatinga. present showed that Brazil diverse dynamic, with range elements available colonization biota. Stream sites similar greater array marginal substrate composition when compared reservoirs, varied type (river/reservoir) seasons (dry/ wet). Results presented have implications management systems. Given organisms, potential mechanisms maintain biotic lie all levels river watershed. fundamental therefore, identify parts riverine ecosystems are vital maintaining its health.

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Application of Catchment- and Local-Scale Variables for Aquatic Habitat Characterization and Assessment in the

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Application of Catchment- and Local-Scale Variables for Aquatic Habitat Characterization and Assessment in the

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